XR17D154CV

Overview

The XR17D154CV is a quad Universal PCI Bus UART interface integrated circuit manufactured by MaxLinear. It supports dual voltage operation at 3.3 V and 5 V, with a supply range of 3 V to 5.5 V. The device features four independent channels, each equipped with a 64-byte FIFO for data buffering. It achieves data rates up to 6.25 Mb/s while consuming approximately 4 mA of operating current. Designed for surface-mount installation, it is housed in a 144-pin LQFP package. The component operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Supports universal PCI bus signaling designs for legacy system integration
• Provides four independent serial communication channels with dedicated 64-byte FIFOs
• Operates on both 3.3 V and 5 V power supplies for flexible board design

Applications

• Industrial control systems requiring multiple serial ports
• Telecommunications equipment utilizing PCI bus architecture
• Embedded computing platforms needing high-speed serial I/O expansion

Procurement Notes

Verify the specific suffix designation (e.g., -F) against the required packaging and environmental specifications. Confirm availability status as distribution channels may list this component as end-of-life or limited stock. Ensure the procurement source provides valid RoHS compliance documentation and original manufacturer traceability before finalizing orders.

Selection Notes

Select this component when a design requires four serial interfaces connected via a PCI bus. Compare the 64-byte FIFO depth against application buffer requirements. Verify that the 144-pin LQFP footprint matches the PCB layout constraints. Ensure the target system supports the necessary PCI signaling levels and voltage domains compatible with the 3.3 V/5 V operation.

Part Context

This part belongs to the XR17D154 series of PCI-based UART controllers. It serves as a bridge between parallel PCI bus transactions and serial asynchronous data streams. The device is often used in legacy industrial and server applications where PCI connectivity is required alongside extensive serial port expansion capabilities.

Replacement Considerations

The XR17V354IB176-F is identified as a potential replacement. This alternative offers PCIe connectivity instead of PCI and includes larger 256-byte FIFOs. Verify pinout compatibility and signal level differences before substituting.